How I found out that (a) goats can be clicker trained and (b) my camera shutter sounds like a clicker:

I'm in Boston (MA, not Lincolnshire) and it's both walkable and very pretty. Now I have walked too much.

Anything in particular I should do on Sunday? I've already ambled along the Freedom Trail.

This stuff:

Pop sib!

I don't generally like drop-down boxes for year of birth, but I kind of want to know the story behind this start date for the one on my gym membership. I know it's probably just "no-one's living to 200 in the next 80 years", but immortal professors dodging compulsory retirement sounds more fun.

Good: delightful shade under the trees in Vigelandsparken.
Bad: it turns out I'm allergic to their pollen and about to turn into a wheezing, sneezing mess.
Good again: P3 filters vanquish pollen utterly.

And that's why I'm wearing my mask outdoors on a sunny day.

Oh look Starlink. I hope they don't crash. That would be terrible.

(I know, the odds of Musk having put in a responsible de-orbit on failure system are slender, they'll probably find a way to turn into a million needles and kickstart the Kessler cascade)

Last night's auroras, from sunny 52° north in a streetlit housing estate on a slightly cloudy night. Someone should probably check on our satellites.

To the eye these were just faint god-beams with no real colour. Images have been vigorously de-noised with Lightroom's denoisinator.

It's weirdly inconsistently shimmery, too; this photo's an extreme example but I see this kind of variation a lot:

Kimtech Purple Nitrile gloves proudly claim to be "anti-static tested to protect the wearer and equipment".

And my confusion about emission lines in fluorescent panels was because at work we mostly used halophosphates for our fluorescent tubes, until we replaced them with LEDs. So none of the lines in their spectra are from phosphors: they're just mercury emission.